BES3 Italian Collaboration

BESIII is an experiment running at the Beijing electron-positron collider (BEPCII), based at the IHEP laboratory of the Chinese Academy of Sciences.

The collider BEPCII is a multibunch machine (inter-bunch interval 8 ns) designed to operate in the total energy range 2-4.2 GeV in the laboratory center of mass, at design total beam currents of 910 mA for both beams. The expected luminosity of BEPCII, optimized at the one-beam energy of 1.89 GeV, is 1×1033cm-2s-1. Construction started in 2004 and commissioning went through 2 phases: in 2006, with the interaction region run on conventional magnets, and 2007, when superconducting quadrupoles were installed. During these periods the machine gave data-taking time to Synchrotron Radiation experiments.

Installation of the BESIII detector started in March 2008, and data taking followed on March 6 2009, with a scan of the ψ(2S) peak. During the next month, as machine commissioning continued, the peak luminosity of BEPCII increased steadily from 1.4 to 2.3×1032 cm-2s-1, with beam currents of 550 mA for both electrons and positrons, reaching a new record of 6×1032 cm-2s-1 in February 2011 with currents close to 700 mA.






Getting Started







  • R Farinelli - A cylindrical GEM detector for BESIII - 20/03/2015
  • M Scodeggio - Analisi dei dati di un test su fascio di un prototipo di rivelatore a GEM - 24/07/2015
  • N Canale - Test su fascio di un prototipo a GEM finalizzato allo studio del rivelatore centrale dell'esperimento BESIII - 01/10/2015
  • M Gertosio - A Labview-based program to test TIGER (Torino Integrated Gem Electronics for Readout) 64-channel mixed-mode ASIC" - 06/04/17



  • On CGEM
    • G. Cibinetto, “A Cylindrical GEM Detector with Analog Readout for the BESIII Experiment”, ANIMMA2015, Advancements in Nuclear Instrumentation Measurement Methods and their Applications, Lisbon, Portugal, 20-24 April 2015. pdf
    • G. Cibinetto, “A Cylindrical GEM Detector with Analog Readout for the BESIII Experiment”, MGPD 2015 & RD51 Collaboration Meeting, Trieste, Italy, 12-17 October 2015. pdf
    • G. Morello, “The CGEM detector for BESIII”, SIF 2016, Padova, Italy, 26-30 September 2016. pdf
    • J. Pellegrino, “New approaches for an (almost) automatic set-up of elastic cloud infrastructures”, SIF 2016, Padova, Italy, 26-30 Sep 2016. pdf
  • CGEM Related
    • M. Bertani, “La Fisica di BESIII: risultati inattesi?”, Seminar in Perugia: Dec.12, 2016. pdf
    • M. Maggiora, “Highlights on BESIII recent results”, HHIQCD2015, Hadrons and Hadron Interactions in QCD, Kyoto, Japan, 15 February – 21 March 2015. pdf


  • On CGEM
    • R. Farinelli, “Il rivelatore a Gem Cilindriche per l’esperimento BESIII: misura delle prestazioni in campo magnetico e stato del progetto”, IFAE 2016 Conference, Genova ,Italy, 30 March - 01 April 2016. Proceedings: Il Nuovo Cimento 40 C (2017) 76. pdf slides
    • L. Lavezzi, “The Cylindrical GEM Inner Tracker of the BESIII experiment: prototype test beam results”, INSTR17, Instrumentation conference 2017, Novosibirsk, Russia, 27 February – 3 March 2017. Proceedings: in press. pdf
    • F. Astorino, A. Amoroso, S. Bagnasco, N. A. Balashov, F. Bianchi, M. Destefanis, M. Maggiora, J. Pellegrino, L. Yan, T. Yan, X. Zhang, X. Zhao, “A modular (almost) automatic set-up for elastic multi-tenants cloud (micro)infrastructures”, CHEP2016, San Francisco, USA, 10-14 October 2016. Proceedings: Submitted to Journal of Physics: Conference Series, still not public. pdf poster
    • G. Mezzadri, “The CGEM-IT of the BESIII experiment: project update and test results in magnetic field”, FAIRNESS2016 – Workshop for young scientists with research interests focused on physics at FAIR, Garmisch-Partenkirchen, Germany, 14-19 February 2016. Proceedings: J.Phys.Conf.Ser. 742 (2016) 012036. pdf slides
    • M. Da Rocha Rolo, “A custom readout electronics for the BESIII CGEM detector”, INSTR17, Instrumentation conference 2017, Novosibirsk, Russia, 27 February – 3 March 2017. Proceedings: in press. pdf
    • CY. Leng, M. Alexeev, R. Bugalho, JY. Chai, M. Da Rocha Rolo, A. Di Francesco, M. Gertosio, M. Greco, HS. Li, M. Maggiora, S. Marcello, M. Mignone, A. Rivetti, J. Varela, and R. Wheadon, “TIGER, a 64 channel mixed-mode ASIC for the readout of the CGEM detector in the BESIII experiment”, IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2016, Strasbourg, France, 29 October -6 November 2016. Proceedings: to be published on Conference RECORD, Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2016 IEEE. pdf
    • A. Amoroso et al., “A cylindrical GEM detector with analog readout for the BESIII experiment”, 13th Pisa Meeting on Advanced Detectors, Frontier Detectors for Frontier Physics, La Biodola, Isola d'Elba, Italy, 24-30 May 2015, Nucl.Instrum.Meth. A824 (2016) 515-517. pdf poster
    • A. Amoroso et al., “A cylindrical GEM Inner Tracker for the BESIII experiment”, IFAE 2015, Rome, Italy, 8-10 April 2015, Nuovo Cim. 39 C (2016) 261. pdf slides

Other events

  • On CGEM
  • CGEM Related

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